check for ClosedHandle in read/write operations on DuplexHandles (#4808)

[ghc-base.git] / Data / Bits.hs

diff --git a/Data/Bits.hs b/Data/Bits.hs
index 62b64a3..c9230c5 100644 (file)
--- a/Data/Bits.hs
+++ b/Data/Bits.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE BangPatterns #-}
 {-# OPTIONS_GHC -XNoImplicitPrelude #-}
 -----------------------------------------------------------------------------
 -- |
@@ -126,7 +127,7 @@ class Num a => Bits a where
                   | i>0  = (x `shift` i) .|. (x `shift` (i-bitSize x))
     -}
 
-    -- | @bit i@ is a value with the @i@th bit set
+    -- | @bit i@ is a value with the @i@th bit set and all other bits clear
     bit               :: Int -> a
 
     -- | @x \`setBit\` i@ is the same as @x .|. bit i@